Just quote a couple of spoiler-free sentences the book you’re reading to tempt other readers.
Here is mine:-
“Once back inside the library, he pointed to the pair of narrow beds covered with red velvet that ran along one wall of the front room. These were two of the thirteen official beds at what George liked to call “The Tumbleweed Hotel”: one in the antiquarian room, two in the main part of the bookstore downstairs, six in the library, and four more upstairs in the third-floor apartment.
From Books, Baguettes and Bedbugs by Jeremy Mercer.
I love memoirs about libraries and bookshops!